British ascidians: Tunicata: Ascidiacea
Millar, R.H. (1970). British ascidians: Tunicata: Ascidiacea. Synopses of the British Fauna, N.S. 1. Academic Press: London. ISBN 12-496650-0. 92 pp.
Part of: Barnes, R.S.K.; Crothers, J.H. (Ed.) Synopses of the British Fauna. Linnean Society of London: London; New York. ISSN 0082-1101, more
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